linux-kernel - Re: [PATCH] mtd: spi-nor: debugfs: fix format specifier

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Message-ID: <ea3a10d91129e4948eabc4bed8cf22fe@walle.cc>
Date:   Thu, 12 May 2022 14:34:54 +0200
From:   Michael Walle <michael@...le.cc>
To:     Pratyush Yadav <p.yadav@...com>
Cc:     Tudor Ambarus <tudor.ambarus@...rochip.com>,
        Dan Carpenter <dan.carpenter@...cle.com>,
        Miquel Raynal <miquel.raynal@...tlin.com>,
        Richard Weinberger <richard@....at>,
        Vignesh Raghavendra <vigneshr@...com>,
        linux-mtd@...ts.infradead.org, linux-kernel@...r.kernel.org,
        kernel test robot <lkp@...el.com>
Subject: Re: [PATCH] mtd: spi-nor: debugfs: fix format specifier

Am 2022-05-12 14:32, schrieb Pratyush Yadav:
> Hi Michael,
> 
> On 12/05/22 01:20PM, Michael Walle wrote:
>> The intention was to print the JEDEC ID in the following format:
>>   nn nn nn
>> 
>> In this case format specifier has to be "%*ph". Fix it.
>> 
>> Fixes: 0257be79fc4a ("mtd: spi-nor: expose internal parameters via 
>> debugfs")
>> Reported-by: kernel test robot <lkp@...el.com>
>> Reported-by: Dan Carpenter <dan.carpenter@...cle.com>
>> Signed-off-by: Michael Walle <michael@...le.cc>
>> ---
>>  drivers/mtd/spi-nor/debugfs.c | 2 +-
>>  1 file changed, 1 insertion(+), 1 deletion(-)
>> 
>> diff --git a/drivers/mtd/spi-nor/debugfs.c 
>> b/drivers/mtd/spi-nor/debugfs.c
>> index bf9fda5d4d0b..4b972bd4b80d 100644
>> --- a/drivers/mtd/spi-nor/debugfs.c
>> +++ b/drivers/mtd/spi-nor/debugfs.c
>> @@ -81,7 +81,7 @@ static int spi_nor_params_show(struct seq_file *s, 
>> void *data)
>>  	int i;
>> 
>>  	seq_printf(s, "name\t\t%s\n", info->name);
>> -	seq_printf(s, "id\t\t%*phn\n", SPI_NOR_MAX_ID_LEN, nor->id);
>> +	seq_printf(s, "id\t\t%*ph\n", SPI_NOR_MAX_ID_LEN, nor->id);
> 
> Patch does not apply. Are you basing this on some other commits you
> have? This line is different on my tree:
> 
> 	seq_printf(s, "id\t\t%*phn\n", info->id_len, info->id);
> 
> In fact, I do not have a nor->id at all in my tree. BTW, I have applied
> https://lore.kernel.org/r/20220429102018.2361038-2-michael@walle.cc
> 
> I am going to apply the below patch. Please ACK/NACK. I did a quick
> test, the output stays the same before and after this patch.
> 
> -- 8< --
> From c47452194641b5d27c20e557c84a46c85fd7ce37 Mon Sep 17 00:00:00 2001
> From: Michael Walle <michael@...le.cc>
> Date: Thu, 12 May 2022 13:20:27 +0200
> Subject: [PATCH] mtd: spi-nor: debugfs: fix format specifier
> 
> The intention was to print the JEDEC ID in the following format:
>   nn nn nn
> 
> In this case format specifier has to be "%*ph". Fix it.
> 
> Fixes: 0257be79fc4a ("mtd: spi-nor: expose internal parameters via 
> debugfs")
> Reported-by: kernel test robot <lkp@...el.com>
> Reported-by: Dan Carpenter <dan.carpenter@...cle.com>
> Signed-off-by: Michael Walle <michael@...le.cc>
> Signed-off-by: Pratyush Yadav <p.yadav@...com>
> Link: 
> https://lore.kernel.org/r/20220512112027.3771734-1-michael@walle.cc
> ---
>  drivers/mtd/spi-nor/debugfs.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/mtd/spi-nor/debugfs.c 
> b/drivers/mtd/spi-nor/debugfs.c
> index 1949905eefea..eaf84f7a0676 100644
> --- a/drivers/mtd/spi-nor/debugfs.c
> +++ b/drivers/mtd/spi-nor/debugfs.c
> @@ -81,7 +81,7 @@ static int spi_nor_params_show(struct seq_file *s, 
> void *data)
>  	int i;
> 
>  	seq_printf(s, "name\t\t%s\n", info->name);
> -	seq_printf(s, "id\t\t%*phn\n", info->id_len, info->id);
> +	seq_printf(s, "id\t\t%*ph\n", info->id_len, info->id);
>  	string_get_size(params->size, 1, STRING_UNITS_2, buf, sizeof(buf));
>  	seq_printf(s, "size\t\t%s\n", buf);
>  	seq_printf(s, "write size\t%u\n", params->writesize);

Ack. Thanks. My bad, there are some missing changes, which I didn't
sent yet.

-michael